Per 
Item #: SCP-5196
Object Class: Euclid
Special Containment Procedures: SCP-5196 is to be contained in a chamber with access to a sustained supply of cat food (not Meow Mix), at 101.5 °F, or 38.6 °C.
Description: SCP-5196 is a felis catus1 with facial features closely resembling that of a human, but disproportionate. It's lips are twice the size of it's eyes, and it's nose is similar in size to that of a grape tomato. It weighs approximately 16.8 lbs (about 7.62 kg), and is 16 inches in length (40.64 cm).
If SCP-5196 is supplied with Meow Mix cat food, it will involuntarily exert acid from its 50 acid pores, the speed of which is about 48 mph. If SCP-5196 has not consumed for 72 hours2, it will hiss at approximately 150 decibels3, and claw viciously at the containment chamber walls. Afterwards, it will reverse-age into a kitten, and repeat the aging process for about 68 hours. After 68 hours it will stop aging. When SCP-5196 is in its shrunken form, it weighs about 15 ounces.
Addendum 5196:
Event 5/4/20██
SCP-5196 was found inside an apartment room next to a deceased woman. The woman, by the name of █████ ████, had hydrofluoric acid burns across her torso. Based on our recent studies conducted on the specimen, we can conclude that SCP-5196 had consumed the Meow Mix from the cat bowl (labeled Kitty), and had screeched loud enough to rupture the poor woman's eardrum, which us most likely the cause of her bloody ears. The reasons for Meow Mix causing such a reaction is from the taste buds of SCP-5196 triggering a natural reflex cause
